Journal of clinical anesthesia
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Randomized Controlled Trial
Supplementation of retrobulbar block with clonidine in vitreoretinal surgery: effect on postoperative pain.
To evaluate the effect of clonidine when added to local anesthetics on duration of postoperative analgesia during retrobulbar block. ⋯ The addition of clonidine 0.5 μg/kg to the local anesthetics of a retrobulbar block for vitreoretinal surgery decreases the frequency of postoperative pain and prolongs the time of analgesia.
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Randomized Controlled Trial
Prophylactic glycopyrrolate prevents bradycardia after spinal anesthesia for Cesarean section: a randomized, double-blinded, placebo-controlled prospective trial with heart rate variability correlation.
To determine if prophylactic glycopyrrolate prevents bradycardia after spinal anesthesia. ⋯ Bradycardia after spinal anesthesia occurs commonly. Prophylactic glycopyrrolate may prevent the bradycardia, but not necessarily the hypotension.